Code indicating the relative position of the simple data element or composite data structure in error within a segment, count beginning with 1 for the position immediately following the segment ID; additionally indicating the relative position of a repeating structure in error, count beginning with 1 for the position immediately following the preceding data element separator; additionally indicating the relative position of a component of a composite data structure in error, count beginning with 1 for the position following the preceding data element or repetition separator
This is used to indicate the relative position of a simple data element, or the relative position of a composite data structure with the relative position of the component within the composite data structure, in error; in the data segment the count starts with 1 for the simple data element or composite data structure immediately following the segment ID
To identify the component data element position within the composite that is in error
To identify the specific repetition of a data element that is in error
